Question

find the solution...​

Answer 1

since

x=(2-√3),

then

1/x = (2+√3),

hence

(x + 1/x) = (2-√3)+(2+√3)=2+2=4,

therefore

(x+1/x)³ + 2(x+1/x)² + (x+1/x) -100,

(4)³ + 2(4)² + 4 -100,

64+32-96,

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